/*
        cssQuery, version 2.0.2 (2005-08-19)
        Copyright: 2004-2005, Dean Edwards (http://dean.edwards.name/)
        License: http://creativecommons.org/licenses/LGPL/2.1/
*/

// the following functions allow querying of the DOM using CSS selectors
var cssQuery = function() {
var version = "2.0.2ruzee";

// -----------------------------------------------------------------------
// main query function
// -----------------------------------------------------------------------

var $COMMA = /\s*,\s*/;
var cssQuery = function($selector, $$from) {
// try {
        var $match = [];
        var $useCache = arguments.callee.caching && !$$from;
        var $base = ($$from) ? ($$from.constructor == Array) ? $$from : [$$from] : [document];
        // process comma separated selectors
        var $$selectors = parseSelector($selector).split($COMMA), i;
        for (i = 0; i < $$selectors.length; i++) {
                // convert the selector to a stream
                $selector = _toStream($$selectors[i]);
                // faster chop if it starts with id (MSIE only)
                if (isMSIE && $selector.slice(0, 3).join("") == " *#") {
                        $selector = $selector.slice(2);
                        $$from = _msie_selectById([], $base, $selector[1]);
                } else $$from = $base;
                // process the stream
                var j = 0, $token, $filter, $arguments, $cacheSelector = "";
                while (j < $selector.length) {
                        $token = $selector[j++];
                        $filter = $selector[j++];
                        $cacheSelector += $token + $filter;
                        // some pseudo-classes allow arguments to be passed
                        //  e.g. nth-child(even)
                        $arguments = "";
                        if ($selector[j] == "(") {
                                while ($selector[j++] != ")" && j < $selector.length) {
                                        $arguments += $selector[j];
                                }
                                $arguments = $arguments.slice(0, -1);
                                $cacheSelector += "(" + $arguments + ")";
                        }
                        // process a token/filter pair use cached results if possible
                        $$from = ($useCache && cache[$cacheSelector]) ?
                                cache[$cacheSelector] : select($$from, $token, $filter, $arguments);
                        if ($useCache) cache[$cacheSelector] = $$from;
                }
                $match = $match.concat($$from);
        }
        delete cssQuery.error;
        return $match;
/*} catch ($error) {
        for (p in $error){
          alert(p+':'+$error[p]);
        }
//         alert($error);
        cssQuery.error = $error;
        return [];
}*/
};

// -----------------------------------------------------------------------
// public interface
// -----------------------------------------------------------------------

cssQuery.toString = function() {
        return "function cssQuery() {\n  [version " + version + "]\n}";
};

// caching
var cache = {};
cssQuery.caching = false;
cssQuery.clearCache = function($selector) {
        if ($selector) {
                $selector = _toStream($selector).join("");
                delete cache[$selector];
        } else cache = {};
};

// allow extensions
var modules = {};
var loaded = false;
cssQuery.addModule = function($name, $script) {
        if (loaded) eval("$script=" + String($script));
        modules[$name] = new $script();;
};

// hackery
cssQuery.valueOf = function($code) {
        return $code ? eval($code) : this;
};

// -----------------------------------------------------------------------
// declarations
// -----------------------------------------------------------------------

var selectors = {};
var pseudoClasses = {};
// a safari bug means that these have to be declared here
var AttributeSelector = {match: /\[([\w-]+(\|[\w-]+)?)\s*(\W?=)?\s*([^\]]*)\]/};
var attributeSelectors = [];

// -----------------------------------------------------------------------
// selectors
// -----------------------------------------------------------------------

// descendant selector
selectors[" "] = function($results, $from, $tagName, $namespace) {
        // loop through current selection
        var $element, i, j;
        for (i = 0; i < $from.length; i++) {
                // get descendants
                var $subset = getElementsByTagName($from[i], $tagName, $namespace);
                // loop through descendants and add to results selection
                for (j = 0; ($element = $subset[j]); j++) {
                        if (thisElement($element) && compareNamespace($element, $namespace))
                                $results.push($element);
                }
        }
};

// ID selector
selectors["#"] = function($results, $from, $id) {
        // loop through current selection and check ID
        var $element, j;
        for (j = 0; ($element = $from[j]); j++) if ($element.id == $id) $results.push($element);
};

// class selector
selectors["."] = function($results, $from, $className) {
        // create a RegExp version of the class
        $className = new RegExp("(^|\\s)" + $className + "(\\s|$)");
        // loop through current selection and check class
        var $element, i;
        for (i = 0; ($element = $from[i]); i++)
                if ($className.test($element.className)) $results.push($element);
};

// pseudo-class selector
selectors[":"] = function($results, $from, $pseudoClass, $arguments) {
        // retrieve the cssQuery pseudo-class function
        var $test = pseudoClasses[$pseudoClass], $element, i;
        // loop through current selection and apply pseudo-class filter
        if ($test) for (i = 0; ($element = $from[i]); i++)
                // if the cssQuery pseudo-class function returns "true" add the element
                if ($test($element, $arguments)) $results.push($element);
};

// -----------------------------------------------------------------------
// pseudo-classes
// -----------------------------------------------------------------------

pseudoClasses["link"] = function($element) {
        var $document = getDocument($element);
        if ($document.links) for (var i = 0; i < $document.links.length; i++) {
                if ($document.links[i] == $element) return true;
        }
};

pseudoClasses["visited"] = function($element) {
        // can't do this without jiggery-pokery
};

// -----------------------------------------------------------------------
// DOM traversal
// -----------------------------------------------------------------------

// IE5/6 includes comments (LOL) in it's elements collections.
// so we have to check for this. the test is tagName != "!". LOL (again).
var thisElement = function($element) {
        return ($element && $element.nodeType == 1 && $element.tagName != "!") ? $element : null;
};

// return the previous element to the supplied element
//  previousSibling is not good enough as it might return a text or comment node
var previousElementSibling = function($element) {
        while ($element && ($element = $element.previousSibling) && !thisElement($element)) continue;
        return $element;
};

// return the next element to the supplied element
var nextElementSibling = function($element) {
        while ($element && ($element = $element.nextSibling) && !thisElement($element)) continue;
        return $element;
};

// return the first child ELEMENT of an element
//  NOT the first child node (though they may be the same thing)
var firstElementChild = function($element) {
        return thisElement($element.firstChild) || nextElementSibling($element.firstChild);
};

var lastElementChild = function($element) {
        return thisElement($element.lastChild) || previousElementSibling($element.lastChild);
};

// return child elements of an element (not child nodes)
var childElements = function($element) {
        var $childElements = [];
        $element = firstElementChild($element);
        while ($element) {
                $childElements.push($element);
                $element = nextElementSibling($element);
        }
        return $childElements;
};

// -----------------------------------------------------------------------
// browser compatibility
// -----------------------------------------------------------------------

// all of the functions in this section can be overwritten. the default
//  configuration is for IE. The functions below reflect this. standard
//  methods are included in a separate module. It would probably be better
//  the other way round of course but this makes it easier to keep IE7 trim.

var isMSIE = true;

var isXML = function($element) {
        var $document = getDocument($element);
        return (typeof $document.mimeType == "unknown") ?
                /\.xml$/i.test($document.URL) :
                Boolean($document.mimeType == "XML Document");
};

// return the element's containing document
var getDocument = function($element) {
        return $element.ownerDocument || $element.document;
};

var getElementsByTagName = function($element, $tagName) {
        return ($tagName == "*" && $element.all) ? $element.all : $element.getElementsByTagName($tagName);
};

var compareTagName = function($element, $tagName, $namespace) {
        if ($tagName == "*") return thisElement($element);
        if (!compareNamespace($element, $namespace)) return false;
        if (!isXML($element)) $tagName = $tagName.toUpperCase();
        return $element.tagName == $tagName;
};

var compareNamespace = function($element, $namespace) {
        return !$namespace || ($namespace == "*") || ($element.scopeName == $namespace);
};

var getTextContent = function($element) {
        return $element.innerText;
};

function _msie_selectById($results, $from, id) {
        var $match, i, j;
        for (i = 0; i < $from.length; i++) {
                if ($match = $from[i].all.item(id)) {
                        if ($match.id == id) $results.push($match);
                        else if ($match.length != null) {
                                for (j = 0; j < $match.length; j++) {
                                        if ($match[j].id == id) $results.push($match[j]);
                                }
                        }
                }
        }
        return $results;
};

// for IE5.0
if (![].push) Array.prototype.push = function() {
        for (var i = 0; i < arguments.length; i++) {
                this[this.length] = arguments[i];
        }
        return this.length;
};

// -----------------------------------------------------------------------
// query support
// -----------------------------------------------------------------------

// select a set of matching elements.
// "from" is an array of elements.
// "token" is a character representing the type of filter
//  e.g. ">" means child selector
// "filter" represents the tag name, id or class name that is being selected
// the function returns an array of matching elements
var $NAMESPACE = /\|/;
function select($$from, $token, $filter, $arguments) {
        if ($NAMESPACE.test($filter)) {
                $filter = $filter.split($NAMESPACE);
                $arguments = $filter[0];
                $filter = $filter[1];
        }
        var $results = [];
        if (selectors[$token]) {
                selectors[$token]($results, $$from, $filter, $arguments);
        }
        return $results;
};

// -----------------------------------------------------------------------
// parsing
// -----------------------------------------------------------------------

// convert css selectors to a stream of tokens and filters
//  it's not a real stream. it's just an array of strings.
var $STANDARD_SELECT = /^[^\s>+~]/;
var $$STREAM = /[\s#.:>+~()@]|[^\s#.:>+~()@]+/g;
function _toStream($selector) {
        if ($STANDARD_SELECT.test($selector)) $selector = " " + $selector;
        return $selector.match($$STREAM) || [];
};

var $WHITESPACE = /\s*([\s>+~(),]|^|$)\s*/g;
var $IMPLIED_ALL = /([\s>+~,]|[^(]\+|^)([#.:@])/g;
var parseSelector = function($selector) {
        return $selector
        // trim whitespace
        .replace($WHITESPACE, "$1")
        // e.g. ".class1" --> "*.class1"
        .replace($IMPLIED_ALL, "$1*$2");
};

var Quote = {
        toString: function() {return "'"},
        match: /^('[^']*')|("[^"]*")$/,
        test: function($string) {
                return this.match.test($string);
        },
        add: function($string) {
                return this.test($string) ? $string : this + $string + this;
        },
        remove: function($string) {
                return this.test($string) ? $string.slice(1, -1) : $string;
        }
};

var getText = function($text) {
        return Quote.remove($text);
};

var $ESCAPE = /([\/()[\]?{}|*+-])/g;
function regEscape($string) {
        return $string.replace($ESCAPE, "\\$1");
};

// -----------------------------------------------------------------------
// modules
// -----------------------------------------------------------------------

// -------- >>      insert modules here for packaging       << -------- \\


// -------- >>      level2 added by ruzee                   << -------- \\

// -----------------------------------------------------------------------
// selectors
// -----------------------------------------------------------------------

// child selector
selectors[">"] = function($results, $from, $tagName, $namespace) {
        var $element, i, j;
        for (i = 0; i < $from.length; i++) {
                var $subset = childElements($from[i]);
                for (j = 0; ($element = $subset[j]); j++)
                        if (compareTagName($element, $tagName, $namespace))
                                $results.push($element);
        }
};

// sibling selector
selectors["+"] = function($results, $from, $tagName, $namespace) {
        for (var i = 0; i < $from.length; i++) {
                var $element = nextElementSibling($from[i]);
                if ($element && compareTagName($element, $tagName, $namespace))
                        $results.push($element);
        }
};

// attribute selector
selectors["@"] = function($results, $from, $attributeSelectorID) {
        var $test = attributeSelectors[$attributeSelectorID].test;
        var $element, i;
        for (i = 0; ($element = $from[i]); i++)
                if ($test($element)) $results.push($element);
};

// -----------------------------------------------------------------------
// pseudo-classes
// -----------------------------------------------------------------------

pseudoClasses["first-child"] = function($element) {
        return !previousElementSibling($element);
};

pseudoClasses["lang"] = function($element, $code) {
        $code = new RegExp("^" + $code, "i");
        while ($element && !$element.getAttribute("lang")) $element = $element.parentNode;
        return $element && $code.test($element.getAttribute("lang"));
};

// -----------------------------------------------------------------------
//  attribute selectors
// -----------------------------------------------------------------------

// constants
AttributeSelector.NS_IE = /\\:/g;
AttributeSelector.PREFIX = "@";
// properties
AttributeSelector.tests = {};
// methods
AttributeSelector.replace = function($match, $attribute, $namespace, $compare, $value) {
        var $key = this.PREFIX + $match;
        if (!attributeSelectors[$key]) {
                $attribute = this.create($attribute, $compare || "", $value || "");
                // store the selector
                attributeSelectors[$key] = $attribute;
                attributeSelectors.push($attribute);
        }
        return attributeSelectors[$key].id;
};
AttributeSelector.parse = function($selector) {
        $selector = $selector.replace(this.NS_IE, "|");
        var $match;
        while ($match = $selector.match(this.match)) {
                var $replace = this.replace($match[0], $match[1], $match[2], $match[3], $match[4]);
                $selector = $selector.replace(this.match, $replace);
        }
        return $selector;
};
AttributeSelector.create = function($propertyName, $test, $value) {
        var $attributeSelector = {};
        $attributeSelector.id = this.PREFIX + attributeSelectors.length;
        $attributeSelector.name = $propertyName;
        $test = this.tests[$test];
        $test = $test ? $test(this.getAttribute($propertyName), getText($value)) : false;
        $attributeSelector.test = new Function("e", "return " + $test);
        return $attributeSelector;
};
AttributeSelector.getAttribute = function($name) {
        switch ($name.toLowerCase()) {
                case "id":
                        return "e.id";
                case "class":
                        return "e.className";
                case "for":
                        return "e.htmlFor";
                case "href":
                        if (isMSIE) {
                                // IE always returns the full path not the fragment in the href attribute
                                //  so we RegExp it out of outerHTML. Opera does the same thing but there
                                //  is no way to get the original attribute.
                                return "String((e.outerHTML.match(/href=\\x22?([^\\s\\x22]*)\\x22?/)||[])[1]||'')";
                        }
        }
        return "e.getAttribute('" + $name.replace($NAMESPACE, ":") + "')";
};

// -----------------------------------------------------------------------
//  attribute selector tests
// -----------------------------------------------------------------------

AttributeSelector.tests[""] = function($attribute) {
        return $attribute;
};

AttributeSelector.tests["="] = function($attribute, $value) {
        return $attribute + "==" + Quote.add($value);
};

AttributeSelector.tests["~="] = function($attribute, $value) {
        return "/(^| )" + regEscape($value) + "( |$)/.test(" + $attribute + ")";
};

AttributeSelector.tests["|="] = function($attribute, $value) {
        return "/^" + regEscape($value) + "(-|$)/.test(" + $attribute + ")";
};

// -----------------------------------------------------------------------
//  parsing
// -----------------------------------------------------------------------

// override parseSelector to parse out attribute selectors
var _parseSelector = parseSelector;
parseSelector = function($selector) {
        return _parseSelector(AttributeSelector.parse($selector));
};


// -------- >>      standard added by ruzee                 << -------- \\

// -----------------------------------------------------------------------
// browser compatibility
// -----------------------------------------------------------------------

// sniff for Win32 Explorer
isMSIE = eval("false;/*@cc_on@if(@\x5fwin32)isMSIE=true@end@*/");

if (!isMSIE) {
        getElementsByTagName = function($element, $tagName, $namespace) {
                return $namespace ? $element.getElementsByTagNameNS("*", $tagName) :
                        $element.getElementsByTagName($tagName);
        };

        compareNamespace = function($element, $namespace) {
                return !$namespace || ($namespace == "*") || ($element.prefix == $namespace);
        };

        isXML = document.contentType ? function($element) {
                return /xml/i.test(getDocument($element).contentType);
        } : function($element) {
                return getDocument($element).documentElement.tagName != "HTML";
        };

        getTextContent = function($element) {
                // mozilla || opera || other
                return $element.textContent || $element.innerText || _getTextContent($element);
        };

        function _getTextContent($element) {
                var $textContent = "", $node, i;
                for (i = 0; ($node = $element.childNodes[i]); i++) {
                        switch ($node.nodeType) {
                                case 11: // document fragment
                                case 1: $textContent += _getTextContent($node); break;
                                case 3: $textContent += $node.nodeValue; break;
                        }
                }
                return $textContent;
        };
}

loaded = true;

// -----------------------------------------------------------------------
// return the query function
// -----------------------------------------------------------------------

return cssQuery;

}(); // cssQuery
